the third dimension

the dimension of height 第三维（指高度）.

the sandman, the second coming, the Security Council, the seventh day, the small hours, the solar system, the solar year, the Son of God, the Son of Man, the Soviet Union, the Spanish Main, the splits, the Stars and Stripes, the State Department, the sterling area, the Stone Age, the sulks, the supernatural, the Supreme Court, the Supreme Soviet, the synoptic gospels, the Third World, the three Rs, the triple jump, the U.S., the unconscious, the undermentioned, the underprivileged, the undersigned, the unemployed, the unexpected, the Union Jack (also the Union flag), the United Kingdom, the United Kingdom (abbr 缩写 (the) UK), the United Nations, the United Nations (abbr 缩写 (the) UN), the United States, the unwaged, the unwary, the utmost (also the uttermost), the vitals,